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xhci: add TSP bitflag to TRB tracing 

Software can set a Transfer State Preserve (TSP) flag to maintain
data toggle and sequence number when issuing a reset endpoint
command.

xhci driver is using TSP for soft retry, we want to show TSP usage
in tracing as well

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/1567172356-12915-4-git-send-email-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2019-08-30 16:39:15 +03:00 committed by Greg Kroah-Hartman
parent b62a31b04e
commit 8a62dff2c0
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/host/xhci.h
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@ -2337,12 +2337,13 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2,
break; break;
case TRB_RESET_EP: case TRB_RESET_EP:
sprintf(str, sprintf(str,
"%s: ctx %08x%08x slot %d ep %d flags %c", "%s: ctx %08x%08x slot %d ep %d flags %c:%c",
xhci_trb_type_string(type), xhci_trb_type_string(type),
field1, field0, field1, field0,
TRB_TO_SLOT_ID(field3), TRB_TO_SLOT_ID(field3),
/* Macro decrements 1, maybe it shouldn't?!? */ /* Macro decrements 1, maybe it shouldn't?!? */
TRB_TO_EP_INDEX(field3) + 1, TRB_TO_EP_INDEX(field3) + 1,
field3 & TRB_TSP ? 'T' : 't',
field3 & TRB_CYCLE ? 'C' : 'c'); field3 & TRB_CYCLE ? 'C' : 'c');
break; break;
case TRB_STOP_RING: case TRB_STOP_RING: